package day07;

public class PrimeNumber {
    public static void main(String[] args) {
        for (int num = 2; num <=100 ; num++) {
            boolean flag = true;
            for (int i = 2; i <=num/2 ; i++) {
                if (num%i==0){
                    flag=false;
                    break;
                }
            }
            if (flag){
                System.out.print(num+"\t");
            }
        }


















        /*for (int num=2;num<=100;num++){
            boolean flag = true;
            for (int i=2;i<=num/2;i++){
                if (num%i==0){
                    flag = false;
                    break;
                }
            }
            if (flag){
                System.out.print(num+"\t");
            }
        }*/
        /*int num = 23;
        boolean flag = true;
        for (int i=2;i<num/2;i++){
            if (num%i==0){
                flag = false;
                break;
            }
        }
        if (flag){
            System.out.println("是素数");
        }else {
            System.out.println("不是素数");
        }*/
    }
}
